2 span-bar.cc -- implement Span_bar
4 source file of the GNU LilyPond music typesetter
6 (c) 1997--1999 Han-Wen Nienhuys <hanwen@cs.uu.nl>
11 #include "dimensions.hh"
12 #include "paper-def.hh"
13 #include "molecule.hh"
14 #include "align-element.hh"
18 Span_bar::add_bar (Score_element*b)
20 spanning_l_arr_.push (b);
25 Span_bar::do_substitute_element_pointer (Score_element*o, Score_element*n)
27 spanning_l_arr_.unordered_substitute (o, n);
32 Span_bar::do_width () const
34 Molecule m = lookup_l ()->bar (type_str_, 40 PT, paper_l ());
36 return m.extent (X_AXIS);
40 Span_bar::do_pre_processing ()
42 Bar::do_pre_processing ();
46 dim_cache_[Y_AXIS]->set_empty (false); // a hack to make mark scripts work.
50 Span_bar::do_post_processing ()
52 Bar::do_post_processing ();
56 Span_bar::evaluate_empty ()
58 if (spanning_l_arr_.size () < 1)
60 set_elt_property (transparent_scm_sym, SCM_BOOL_T);
63 if (type_str_.empty_b ())
65 set_elt_property (transparent_scm_sym, SCM_BOOL_T);
68 else if (type_str_ == "|:")
72 else if (type_str_ == ":|")
76 else if (type_str_ == ":|:")
83 Span_bar::get_spanned_interval () const
86 for (int i=0; i < spanning_l_arr_.size (); i++)
88 Dimension_cache*common =
89 common_group (spanning_l_arr_[i], Y_AXIS);
91 Real y = spanning_l_arr_[i]->dim_cache_[Y_AXIS]->relative_coordinate (common)
92 -dim_cache_[Y_AXIS]->relative_coordinate (common);
94 y_int.unite (y + spanning_l_arr_[i]->extent(Y_AXIS));
100 Span_bar::do_height () const
102 return get_spanned_interval ();
106 Span_bar::do_brew_molecule_p () const
108 Interval iv (get_spanned_interval ());
109 Molecule*output = new Molecule;
112 output->add_molecule (lookup_l ()->bar (type_str_, iv.length (), paper_l ()));
113 output->translate_axis (iv.center (), Y_AXIS);
117 programming_error("Huh? My children deflated (FIXME)");
124 Span_bar::Span_bar ()